You mean the power jet?You have to have electrical power to run it (I think at one time on the 125 Kawasaki had the power jet carb on the bike,but the power jet wasnt even wired up) and Destry's bike didnt have a lighting coil,so even if it was a power jet carb it wasnt wired up.You think as long as the 500 has been around there'd be more info on pipes and carbs or differnt combos ect.